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TDD3500 Electric Trailer Dolly
Trailer Dolly Depot
Park small campers and utility trailers with the TDD3500 electric trailer mover. Suitable for ball-mounted trailers up to 3,500 lbs Gross Weight and 350 lbs Tongue Weight. Move up to 1.5 mph in either forward or reverse with the variable speed thumb throttle.
Maneuvering the dolly is easy with the 13-inch drive tires, offering grip on multiple surfaces, including concrete, asphalt, and packed dirt. The rear caster wheel provides 360-degree swivel and additional stability, while the foot bar offers more leverage.
Package includes
- Up to 3,500 lbs Gross Weight
- Up to 350 lbs Tongue Weight
- Solid steel construction
- Variable-speed brushless motor
- 12V sealed lead acid batteries
- Overload protection
- 13-inch drive tires
- Secure ball mount adapter with 2 hitch balls included
Secure ball mount connection
Always ensure your trailer connection is secure with this special ball mount adapter. Tighten the connector to the coupler before attaching the dolly. You can use the optional step-down friction plate to ensure a perfectly flush connection.
Be ready for anything
Solid steel construction
The frame is a single, solid piece made from heavy-duty, heat-treated steel. The sturdy square tubing is then powder coated for a sleek and durable finish that will hold up to use and weather exposure.
Variable-speed motor
The quiet, 800 watt brushless motor can reach speeds of up to 1.5 mph in either forward or reverse. The adjustable speed control with battery status display offers a quick and controlled method for parking your trailer.
Overload protection
Designed with safety in mind. Should you ever exceed the weight capacity of the unit, overload protection automatically shuts down the dolly to preserve the electrical system, protecting the trailer and operator.
Rechargeable 12V batteries
The dolly includes two pre-installed 12V lead acid batteries, boasting 9Ah of use. The dolly is also equipped with a compatible charger so that it can be plugged directly into a wall outlet to recharge after use.
13-inch tires
Maneuvering the dolly is easy with the 13-inch drive tires, offering grip on multiple surfaces, including concrete, asphalt, and packed dirt.
Third wheel
The rear caster wheel with its 360-degree swivel provides additional stability and maneuverability for the dolly.
Foot bar
Get extra leverage for moving and steering the dolly by using the foot bar to counterbalance tongue weight and steer more precisely.
Scott S.
Reviewed in the United States on March 3, 2025
I bought this for probably the same reasons you are looking at this review; I need to move a trailer in a tight space and cannot do it with a vehicle and pushing it by hand was not an option.I have a tandem axle trailer with a 18 foot fiberglass boat, 350 Chevy engine, and assumed 3000 pound boat weight. The property does not make it easy to move with a vehicle and the tandem axle makes it impossible to turn sharp on concrete.First impression was the build quality. Very nice clean cut parts. It came with 2 small batteries which I was not expecting. Electrical connectors are meh. I applied electrical grease to connectors just because why not. While the threaded ball connector to trailer coupling is nice, there's a certain amount of play needed so both tires remain in ground contact. I was able to spin my tandem axle boat trailer 90 degrees on concrete dragging an axle "sideways" the whole time.First and only test so far was easily passed. It moves the trailer forward and back with absolute ease. I certainly recommend this!Two minor downsides though. First, I wish the handle was hinged so it could fold over and be more compact. I will probably do this some day, but it is not that cumbersome. Second, the forward reverse switch is mounted what I would call sideways. It makes sense to me that it should be flipped forward to go forward, backwards to go backwards. It is nicely mounted with arrows, so I cannot complain I guess, but flipping it left to go forward just seems less than ideal.That's my only gripe with it. The overall fit and finish mechanically is very sound, electrical harness seems a little janky but the thing works well and it will make my life much easier.
Dave Bylsma
Reviewed in Canada on February 8, 2025
Our 31 year old son is handicapped, He’s in a wheelchair. The winter time is hard for us to get out and enjoy the outdoors, But now we can go for a walk outside even if it snows out.Great product.
Felipe Sanchez
Reviewed in the United States on February 11, 2025
The tire gets flat when you turn it
Val
Reviewed in the United States on January 7, 2025
we use this to move our boat around in the yard and it works fabulously. We have not had any issues other than slipping on wet grass.
KP
Reviewed in the United States on January 4, 2025
The product was well designed and packaged. Remember to connect the battery disconnect for travel.
Karen Covill
Reviewed in the United States on June 25, 2024
Bought this to move boat trailer around and it fails to do the job. Tires slip & you need to muscle it. With a bad back that’s not a good option!!
Harry Gialvalis
Reviewed in the United States on June 14, 2024
I agree, some parts were missing but I kept it. It's ok but not as good as I thought it would be. The tires slip and don't get enough grip. You still have to muscle it around a little bit to get it to move the trailer
Adrian Hernandez
Reviewed in the United States on December 19, 2024
I bought this for my shop to move jet skis on trailers around the lot. It moves single trailers effortlessly and double trailers with ease. I've used it to move around a 17ft jet boat and it does the job without any issues. It gets used multiple times every day and haven't had an issue at all. Best $700 I ever spent!
clarence blessing
Reviewed in the United States on November 13, 2024
Battery life is more than I expected.Thumb control for stop and go seems a little clumsy.
Customer
Reviewed in Canada on October 28, 2024
description says it is good to push or pull 3500 lbs., but barely moved 2500 lbs. Not worth buying as it costs you to ship back,not worth it.
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